CA2680402A1 - Composition adsorbant l'arsenic et procedes d'utilisation - Google Patents

Composition adsorbant l'arsenic et procedes d'utilisation Download PDF

Info

Publication number: CA2680402A1
Authority: CA; Canada
Prior art keywords: arsenic; lanthanum; composition; solution; filtering
Prior art date: 2006-04-14
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Granted

Application number

CA002680402A

Other languages

English (en)

Other versions

CA2680402C (fr

Inventor

Manoranjan Misra

Joseph Nanor

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

University of Nevada, Reno

Original Assignee

Individual

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

2006-04-14

Filing date

2007-04-16

Publication date

2007-10-25

2007-04-16 Application filed by Individual filed Critical Individual

2007-10-25 Publication of CA2680402A1 publication Critical patent/CA2680402A1/fr

2015-10-27 Application granted granted Critical

2015-10-27 Publication of CA2680402C publication Critical patent/CA2680402C/fr

Status Expired - Fee Related legal-status Critical Current

2027-04-16 Anticipated expiration legal-status Critical

Links

239000000203 mixture Substances 0.000 title claims abstract description 228
238000000034 method Methods 0.000 title claims abstract description 63
229910052785 arsenic Inorganic materials 0.000 title description 178
RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 title description 171
238000001914 filtration Methods 0.000 claims abstract description 98
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 72
229910052746 lanthanum Inorganic materials 0.000 claims abstract description 51
FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims abstract description 51
229910052742 iron Inorganic materials 0.000 claims abstract description 34
229910052749 magnesium Inorganic materials 0.000 claims abstract description 14
239000011777 magnesium Substances 0.000 claims abstract description 14
FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 13
239000000243 solution Substances 0.000 claims description 97
239000013543 active substance Substances 0.000 claims description 52
VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 21
238000001035 drying Methods 0.000 claims description 13
239000005909 Kieselgur Substances 0.000 claims description 9
239000003637 basic solution Substances 0.000 claims description 8
230000001376 precipitating effect Effects 0.000 claims description 6
238000004519 manufacturing process Methods 0.000 abstract description 9
239000000463 material Substances 0.000 description 91
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 58
238000012360 testing method Methods 0.000 description 36
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 33
NNLJGFCRHBKPPJ-UHFFFAOYSA-N iron lanthanum Chemical compound [Fe].[La] NNLJGFCRHBKPPJ-UHFFFAOYSA-N 0.000 description 23
150000001450 anions Chemical class 0.000 description 19
230000008569 process Effects 0.000 description 17
239000003463 adsorbent Substances 0.000 description 16
238000001179 sorption measurement Methods 0.000 description 16
-1 arsenic anions Chemical class 0.000 description 15
229940000489 arsenate Drugs 0.000 description 13
YXEUGTSPQFTXTR-UHFFFAOYSA-K lanthanum(3+);trihydroxide Chemical compound [OH-].[OH-].[OH-].[La+3] YXEUGTSPQFTXTR-UHFFFAOYSA-K 0.000 description 13
239000000126 substance Substances 0.000 description 13
229910052720 vanadium Inorganic materials 0.000 description 13
DJHGAFSJWGLOIV-UHFFFAOYSA-K Arsenate3- Chemical compound [O-][As]([O-])([O-])=O DJHGAFSJWGLOIV-UHFFFAOYSA-K 0.000 description 11
HOFDYIWHAWSARS-UHFFFAOYSA-N [Mg].[Fe].[La] Chemical compound [Mg].[Fe].[La] HOFDYIWHAWSARS-UHFFFAOYSA-N 0.000 description 11
150000003839 salts Chemical class 0.000 description 11
LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 11
BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 10
OWTFKEBRIAXSMO-UHFFFAOYSA-N arsenite(3-) Chemical compound [O-][As]([O-])[O-] OWTFKEBRIAXSMO-UHFFFAOYSA-N 0.000 description 10
239000008367 deionised water Substances 0.000 description 10
238000002386 leaching Methods 0.000 description 10
229910052751 metal Inorganic materials 0.000 description 10
239000002184 metal Substances 0.000 description 10
238000001556 precipitation Methods 0.000 description 10
241000894007 species Species 0.000 description 10
229910019142 PO4 Inorganic materials 0.000 description 9
ICAKDTKJOYSXGC-UHFFFAOYSA-K lanthanum(iii) chloride Chemical compound Cl[La](Cl)Cl ICAKDTKJOYSXGC-UHFFFAOYSA-K 0.000 description 9
238000002156 mixing Methods 0.000 description 9
QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 8
238000004458 analytical method Methods 0.000 description 8
235000020188 drinking water Nutrition 0.000 description 8
239000003651 drinking water Substances 0.000 description 8
235000014413 iron hydroxide Nutrition 0.000 description 8
MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 8
150000002823 nitrates Chemical class 0.000 description 8
239000002245 particle Substances 0.000 description 8
NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 8
235000021317 phosphate Nutrition 0.000 description 8
238000002360 preparation method Methods 0.000 description 8
230000002378 acidificating effect Effects 0.000 description 7
239000002585 base Substances 0.000 description 7
NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 description 7
FLTRNWIFKITPIO-UHFFFAOYSA-N iron;trihydrate Chemical compound O.O.O.[Fe] FLTRNWIFKITPIO-UHFFFAOYSA-N 0.000 description 7
239000000395 magnesium oxide Substances 0.000 description 7
CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 7
AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 7
239000010452 phosphate Substances 0.000 description 7
235000020681 well water Nutrition 0.000 description 7
239000002349 well water Substances 0.000 description 7
VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 6
230000000274 adsorptive effect Effects 0.000 description 6
PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 6
239000007864 aqueous solution Substances 0.000 description 6
238000012512 characterization method Methods 0.000 description 6
239000000356 contaminant Substances 0.000 description 6
239000000706 filtrate Substances 0.000 description 6
VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 description 6
238000010979 pH adjustment Methods 0.000 description 6
239000000758 substrate Substances 0.000 description 6
239000003643 water by type Substances 0.000 description 6
BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 5
VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 5
229910021578 Iron(III) chloride Inorganic materials 0.000 description 5
229910052796 boron Inorganic materials 0.000 description 5
RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 5
239000002244 precipitate Substances 0.000 description 5
239000000377 silicon dioxide Substances 0.000 description 5
238000011282 treatment Methods 0.000 description 5
238000002525 ultrasonication Methods 0.000 description 5
ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 4
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
229910017569 La2(CO3)3 Inorganic materials 0.000 description 4
PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 4
GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 4
238000013019 agitation Methods 0.000 description 4
229910052788 barium Inorganic materials 0.000 description 4
230000015556 catabolic process Effects 0.000 description 4
238000003795 desorption Methods 0.000 description 4
XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 4
229960001633 lanthanum carbonate Drugs 0.000 description 4
238000011068 loading method Methods 0.000 description 4
229910052748 manganese Inorganic materials 0.000 description 4
239000011572 manganese Substances 0.000 description 4
239000011259 mixed solution Substances 0.000 description 4
229910017604 nitric acid Inorganic materials 0.000 description 4
239000012266 salt solution Substances 0.000 description 4
238000001878 scanning electron micrograph Methods 0.000 description 4
239000002002 slurry Substances 0.000 description 4
238000003860 storage Methods 0.000 description 4
JSPLKZUTYZBBKA-UHFFFAOYSA-N trioxidane Chemical compound OOO JSPLKZUTYZBBKA-UHFFFAOYSA-N 0.000 description 4
ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 3
BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 3
239000012670 alkaline solution Substances 0.000 description 3
229910052787 antimony Inorganic materials 0.000 description 3
WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 3
COHDHYZHOPQOFD-UHFFFAOYSA-N arsenic pentoxide Chemical compound O=[As](=O)O[As](=O)=O COHDHYZHOPQOFD-UHFFFAOYSA-N 0.000 description 3
DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 3
230000008901 benefit Effects 0.000 description 3
235000010216 calcium carbonate Nutrition 0.000 description 3
229910000019 calcium carbonate Inorganic materials 0.000 description 3
229910052804 chromium Inorganic materials 0.000 description 3
239000011651 chromium Substances 0.000 description 3
230000007423 decrease Effects 0.000 description 3
238000004090 dissolution Methods 0.000 description 3
230000000694 effects Effects 0.000 description 3
230000007613 environmental effect Effects 0.000 description 3
239000003673 groundwater Substances 0.000 description 3
150000004679 hydroxides Chemical class 0.000 description 3
229910052747 lanthanoid Inorganic materials 0.000 description 3
150000002602 lanthanoids Chemical class 0.000 description 3
NZPIUJUFIFZSPW-UHFFFAOYSA-H lanthanum carbonate Chemical compound [La+3].[La+3].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O NZPIUJUFIFZSPW-UHFFFAOYSA-H 0.000 description 3
FYDKNKUEBJQCCN-UHFFFAOYSA-N lanthanum(3+);trinitrate Chemical compound [La+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O FYDKNKUEBJQCCN-UHFFFAOYSA-N 0.000 description 3
239000007788 liquid Substances 0.000 description 3
150000002739 metals Chemical class 0.000 description 3
239000002159 nanocrystal Substances 0.000 description 3
230000003647 oxidation Effects 0.000 description 3
238000007254 oxidation reaction Methods 0.000 description 3
239000011591 potassium Substances 0.000 description 3
229910052700 potassium Inorganic materials 0.000 description 3
239000002243 precursor Substances 0.000 description 3
239000000523 sample Substances 0.000 description 3
239000011669 selenium Substances 0.000 description 3
229910052711 selenium Inorganic materials 0.000 description 3
239000007787 solid Substances 0.000 description 3
239000011343 solid material Substances 0.000 description 3
238000000527 sonication Methods 0.000 description 3
239000008399 tap water Substances 0.000 description 3
235000020679 tap water Nutrition 0.000 description 3
239000002351 wastewater Substances 0.000 description 3
OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
229910020854 La(OH)3 Inorganic materials 0.000 description 2
229910002651 NO3 Inorganic materials 0.000 description 2
NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
SDWJOINAOWDTJD-UHFFFAOYSA-G [OH-].[Mg+2].[Fe+2].[La+3].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-] Chemical compound [OH-].[Mg+2].[Fe+2].[La+3].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-] SDWJOINAOWDTJD-UHFFFAOYSA-G 0.000 description 2
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
239000007844 bleaching agent Substances 0.000 description 2
239000011575 calcium Substances 0.000 description 2
229910052791 calcium Inorganic materials 0.000 description 2
AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
239000000920 calcium hydroxide Substances 0.000 description 2
235000011116 calcium hydroxide Nutrition 0.000 description 2
229910001861 calcium hydroxide Inorganic materials 0.000 description 2
229910052799 carbon Inorganic materials 0.000 description 2
230000008859 change Effects 0.000 description 2
238000006243 chemical reaction Methods 0.000 description 2
239000003795 chemical substances by application Substances 0.000 description 2
238000005345 coagulation Methods 0.000 description 2
230000015271 coagulation Effects 0.000 description 2
238000010438 heat treatment Methods 0.000 description 2
229910052500 inorganic mineral Inorganic materials 0.000 description 2
150000002603 lanthanum Chemical class 0.000 description 2
JLRJWBUSTKIQQH-UHFFFAOYSA-K lanthanum(3+);triacetate Chemical compound [La+3].CC([O-])=O.CC([O-])=O.CC([O-])=O JLRJWBUSTKIQQH-UHFFFAOYSA-K 0.000 description 2
YIXJRHPUWRPCBB-UHFFFAOYSA-N magnesium nitrate Chemical compound [Mg+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O YIXJRHPUWRPCBB-UHFFFAOYSA-N 0.000 description 2
235000010755 mineral Nutrition 0.000 description 2
239000011707 mineral Substances 0.000 description 2
230000007935 neutral effect Effects 0.000 description 2
239000001301 oxygen Substances 0.000 description 2
229910052760 oxygen Inorganic materials 0.000 description 2
239000000575 pesticide Substances 0.000 description 2
230000002829 reductive effect Effects 0.000 description 2
238000011160 research Methods 0.000 description 2
239000010802 sludge Substances 0.000 description 2
239000002689 soil Substances 0.000 description 2
230000006641 stabilisation Effects 0.000 description 2
238000011105 stabilization Methods 0.000 description 2
230000001988 toxicity Effects 0.000 description 2
231100000419 toxicity Toxicity 0.000 description 2
WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
229910052721 tungsten Inorganic materials 0.000 description 2
239000010937 tungsten Substances 0.000 description 2
238000005406 washing Methods 0.000 description 2
QVOIJBIQBYRBCF-UHFFFAOYSA-H yttrium(3+);tricarbonate Chemical compound [Y+3].[Y+3].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O QVOIJBIQBYRBCF-UHFFFAOYSA-H 0.000 description 2
229910052725 zinc Inorganic materials 0.000 description 2
239000011701 zinc Substances 0.000 description 2
MHUWZNTUIIFHAS-XPWSMXQVSA-N 9-octadecenoic acid 1-[(phosphonoxy)methyl]-1,2-ethanediyl ester Chemical compound CCCCCCCC\C=C\CCCCCCCC(=O)OCC(COP(O)(O)=O)OC(=O)CCCCCCC\C=C\CCCCCCCC MHUWZNTUIIFHAS-XPWSMXQVSA-N 0.000 description 1
DJHGAFSJWGLOIV-UHFFFAOYSA-N Arsenic acid Chemical compound O[As](O)(O)=O DJHGAFSJWGLOIV-UHFFFAOYSA-N 0.000 description 1
GOLCXWYRSKYTSP-UHFFFAOYSA-N Arsenious Acid Chemical compound O1[As]2O[As]1O2 GOLCXWYRSKYTSP-UHFFFAOYSA-N 0.000 description 1
206010007269 Carcinogenicity Diseases 0.000 description 1
229910052684 Cerium Inorganic materials 0.000 description 1
ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
235000008733 Citrus aurantifolia Nutrition 0.000 description 1
RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
229910015400 FeC13 Inorganic materials 0.000 description 1
229910002249 LaCl3 Inorganic materials 0.000 description 1
229910052779 Neodymium Inorganic materials 0.000 description 1
UJKVCWLHRXLAAK-UHFFFAOYSA-N O(O)O.[La] Chemical compound O(O)O.[La] UJKVCWLHRXLAAK-UHFFFAOYSA-N 0.000 description 1
229910052777 Praseodymium Inorganic materials 0.000 description 1
208000000453 Skin Neoplasms Diseases 0.000 description 1
238000003723 Smelting Methods 0.000 description 1
PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
235000011941 Tilia x europaea Nutrition 0.000 description 1
HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
NKUGGSZYKJMJBE-UHFFFAOYSA-I [OH-].[Fe+2].[La+3].[OH-].[OH-].[OH-].[OH-] Chemical compound [OH-].[Fe+2].[La+3].[OH-].[OH-].[OH-].[OH-] NKUGGSZYKJMJBE-UHFFFAOYSA-I 0.000 description 1
238000005299 abrasion Methods 0.000 description 1
239000002250 absorbent Substances 0.000 description 1
230000002745 absorbent Effects 0.000 description 1
238000010521 absorption reaction Methods 0.000 description 1
239000002253 acid Substances 0.000 description 1
150000008043 acidic salts Chemical class 0.000 description 1
239000003929 acidic solution Substances 0.000 description 1
230000009471 action Effects 0.000 description 1
239000012042 active reagent Substances 0.000 description 1
229940037003 alum Drugs 0.000 description 1
HAYXDMNJJFVXCI-UHFFFAOYSA-N arsenic(5+) Chemical compound [As+5] HAYXDMNJJFVXCI-UHFFFAOYSA-N 0.000 description 1
239000012298 atmosphere Substances 0.000 description 1
229910052793 cadmium Inorganic materials 0.000 description 1
BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
OYPRJOBELJOOCE-LZFNBGRKSA-N calcium-46 Chemical compound [46Ca] OYPRJOBELJOOCE-LZFNBGRKSA-N 0.000 description 1
OYPRJOBELJOOCE-CONNIKPHSA-N calcium-48 Chemical compound [48Ca] OYPRJOBELJOOCE-CONNIKPHSA-N 0.000 description 1
230000000711 cancerogenic effect Effects 0.000 description 1
150000005323 carbonate salts Chemical class 0.000 description 1
231100000357 carcinogen Toxicity 0.000 description 1
239000003183 carcinogenic agent Substances 0.000 description 1
230000007670 carcinogenicity Effects 0.000 description 1
231100000260 carcinogenicity Toxicity 0.000 description 1
239000001913 cellulose Substances 0.000 description 1
229920002678 cellulose Polymers 0.000 description 1
239000000919 ceramic Substances 0.000 description 1
ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 description 1
238000009388 chemical precipitation Methods 0.000 description 1
150000003841 chloride salts Chemical class 0.000 description 1
239000000460 chlorine Substances 0.000 description 1
229910052801 chlorine Inorganic materials 0.000 description 1
238000004140 cleaning Methods 0.000 description 1
238000000975 co-precipitation Methods 0.000 description 1
239000000084 colloidal system Substances 0.000 description 1
239000000470 constituent Substances 0.000 description 1
229910052802 copper Inorganic materials 0.000 description 1
239000010949 copper Substances 0.000 description 1
239000002178 crystalline material Substances 0.000 description 1
238000010908 decantation Methods 0.000 description 1
230000003247 decreasing effect Effects 0.000 description 1
208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
238000005516 engineering process Methods 0.000 description 1
238000011156 evaluation Methods 0.000 description 1
229960004887 ferric hydroxide Drugs 0.000 description 1
239000010419 fine particle Substances 0.000 description 1
239000012530 fluid Substances 0.000 description 1
239000002803 fossil fuel Substances 0.000 description 1
239000011521 glass Substances 0.000 description 1
PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
229910052737 gold Inorganic materials 0.000 description 1
239000010931 gold Substances 0.000 description 1
239000002920 hazardous waste Substances 0.000 description 1
230000036541 health Effects 0.000 description 1
230000008821 health effect Effects 0.000 description 1
230000005802 health problem Effects 0.000 description 1
230000002363 herbicidal effect Effects 0.000 description 1
239000004009 herbicide Substances 0.000 description 1
208000000069 hyperpigmentation Diseases 0.000 description 1
230000003810 hyperpigmentation Effects 0.000 description 1
238000007654 immersion Methods 0.000 description 1
239000002440 industrial waste Substances 0.000 description 1
230000003993 interaction Effects 0.000 description 1
238000011835 investigation Methods 0.000 description 1
238000005342 ion exchange Methods 0.000 description 1
150000002500 ions Chemical class 0.000 description 1
FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
IEECXTSVVFWGSE-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Fe+3] IEECXTSVVFWGSE-UHFFFAOYSA-M 0.000 description 1
229910021519 iron(III) oxide-hydroxide Inorganic materials 0.000 description 1
229910000360 iron(III) sulfate Inorganic materials 0.000 description 1
PKOQIYFBOVTYOH-UHFFFAOYSA-H lanthanum(3+);tricarbonate;tetrahydrate Chemical compound O.O.O.O.[La+3].[La+3].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O PKOQIYFBOVTYOH-UHFFFAOYSA-H 0.000 description 1
229910052745 lead Inorganic materials 0.000 description 1
239000004571 lime Substances 0.000 description 1
230000000670 limiting effect Effects 0.000 description 1
201000007270 liver cancer Diseases 0.000 description 1
208000014018 liver neoplasm Diseases 0.000 description 1
VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
239000000347 magnesium hydroxide Substances 0.000 description 1
229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
230000014759 maintenance of location Effects 0.000 description 1
239000012528 membrane Substances 0.000 description 1
QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
229910052753 mercury Inorganic materials 0.000 description 1
229910000000 metal hydroxide Inorganic materials 0.000 description 1
150000004692 metal hydroxides Chemical class 0.000 description 1
150000007522 mineralic acids Chemical class 0.000 description 1
238000005065 mining Methods 0.000 description 1
QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
230000003472 neutralizing effect Effects 0.000 description 1
238000012856 packing Methods 0.000 description 1
239000010451 perlite Substances 0.000 description 1
235000019362 perlite Nutrition 0.000 description 1
238000005504 petroleum refining Methods 0.000 description 1
239000012071 phase Substances 0.000 description 1
150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
230000000704 physical effect Effects 0.000 description 1
239000012286 potassium permanganate Substances 0.000 description 1
PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 description 1
230000002035 prolonged effect Effects 0.000 description 1
229910052761 rare earth metal Inorganic materials 0.000 description 1
206010037844 rash Diseases 0.000 description 1
229910052957 realgar Inorganic materials 0.000 description 1
230000009467 reduction Effects 0.000 description 1
239000012858 resilient material Substances 0.000 description 1
239000011347 resin Substances 0.000 description 1
229920005989 resin Polymers 0.000 description 1
230000004044 response Effects 0.000 description 1
230000000717 retained effect Effects 0.000 description 1
238000001223 reverse osmosis Methods 0.000 description 1
238000012216 screening Methods 0.000 description 1
239000013049 sediment Substances 0.000 description 1
SPVXKVOXSXTJOY-UHFFFAOYSA-N selane Chemical compound [SeH2] SPVXKVOXSXTJOY-UHFFFAOYSA-N 0.000 description 1
238000000926 separation method Methods 0.000 description 1
229910052709 silver Inorganic materials 0.000 description 1
239000004332 silver Substances 0.000 description 1
201000000849 skin cancer Diseases 0.000 description 1
235000011127 sodium aluminium sulphate Nutrition 0.000 description 1
229940047047 sodium arsenate Drugs 0.000 description 1
PTLRDCMBXHILCL-UHFFFAOYSA-M sodium arsenite Chemical compound [Na+].[O-][As]=O PTLRDCMBXHILCL-UHFFFAOYSA-M 0.000 description 1
229910052938 sodium sulfate Inorganic materials 0.000 description 1
235000011152 sodium sulphate Nutrition 0.000 description 1
239000007790 solid phase Substances 0.000 description 1
238000007711 solidification Methods 0.000 description 1
230000008023 solidification Effects 0.000 description 1
239000002904 solvent Substances 0.000 description 1
238000012430 stability testing Methods 0.000 description 1
239000002352 surface water Substances 0.000 description 1
239000012085 test solution Substances 0.000 description 1
230000001052 transient effect Effects 0.000 description 1
238000011179 visual inspection Methods 0.000 description 1
238000010626 work up procedure Methods 0.000 description 1

Classifications

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- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
- B01J20/28011—Other properties, e.g. density, crush strength
- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0207—Compounds of Sc, Y or Lanthanides
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- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0225—Compounds of Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt
- B01J20/0229—Compounds of Fe
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- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
- B01J20/041—Oxides or hydroxides
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01J20/14—Diatomaceous earth
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- B01J20/3078—Thermal treatment, e.g. calcining or pyrolizing
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3202—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the carrier, support or substrate used for impregnation or coating
- B01J20/3204—Inorganic carriers, supports or substrates
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J20/30—Processes for preparing, regenerating, or reactivating
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- B01J20/3202—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the carrier, support or substrate used for impregnation or coating
- B01J20/3206—Organic carriers, supports or substrates
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
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- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
- B01J20/3234—Inorganic material layers
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
- B01J20/3234—Inorganic material layers
- B01J20/3236—Inorganic material layers containing metal, other than zeolites, e.g. oxides, hydroxides, sulphides or salts
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/42—Materials comprising a mixture of inorganic materials
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/103—Arsenic compounds
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Analytical Chemistry (AREA)
Chemical Kinetics & Catalysis (AREA)
Inorganic Chemistry (AREA)
Life Sciences & Earth Sciences (AREA)
Thermal Sciences (AREA)
Physics & Mathematics (AREA)
Geochemistry & Mineralogy (AREA)
Hydrology & Water Resources (AREA)
Engineering & Computer Science (AREA)
Environmental & Geological Engineering (AREA)
Water Supply & Treatment (AREA)
Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Removal Of Specific Substances (AREA)

CA2680402A 2006-04-14 2007-04-16 Composition adsorbant l'arsenic et procedes d'utilisation Expired - Fee Related CA2680402C (fr)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
US79223306P	2006-04-14	2006-04-14
US60/792,233		2006-04-14
PCT/US2007/009390 WO2007120910A1 (fr)	2006-04-14	2007-04-16	Composition absorbant l'arsenic et procédés d'utilisation

Publications (2)

Publication Number	Publication Date
CA2680402A1 true CA2680402A1 (fr)	2007-10-25
CA2680402C CA2680402C (fr)	2015-10-27

Family

ID=38609835

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA2680402A Expired - Fee Related CA2680402C (fr)	2006-04-14	2007-04-16	Composition adsorbant l'arsenic et procedes d'utilisation

Country Status (4)

Country	Link
US (3)	US8110526B2 (fr)
EP (1)	EP2079544A4 (fr)
CA (1)	CA2680402C (fr)
WO (1)	WO2007120910A1 (fr)

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US6863825B2 (en) *	2003-01-29	2005-03-08	Union Oil Company Of California	Process for removing arsenic from aqueous streams
WO2007120910A1 (fr)	2006-04-14	2007-10-25	Board Of Regents Of The Nevada System Of Higher Education, On Behalf Of The Univ. Of Nevada, Reno	Composition absorbant l'arsenic et procédés d'utilisation
US8066874B2 (en)	2006-12-28	2011-11-29	Molycorp Minerals, Llc	Apparatus for treating a flow of an aqueous solution containing arsenic
US10265265B2 (en)	2007-03-15	2019-04-23	Drug Delivery Solutions Limited	Topical composition
EP2008651A1 (fr)	2007-06-26	2008-12-31	Drug Delivery Solutions Limited	Patch bioérodable
US20090107925A1 (en) *	2007-10-31	2009-04-30	Chevron U.S.A. Inc.	Apparatus and process for treating an aqueous solution containing biological contaminants
US8349764B2 (en) *	2007-10-31	2013-01-08	Molycorp Minerals, Llc	Composition for treating a fluid
US8252087B2 (en)	2007-10-31	2012-08-28	Molycorp Minerals, Llc	Process and apparatus for treating a gas containing a contaminant
US20100155330A1 (en) *	2008-11-11	2010-06-24	Molycorp Minerals, Llc	Target material removal using rare earth metals
IN2012DN00829A (fr) *	2009-07-06	2015-06-26	Molycorp Minerals Llc
HRP20191711T1 (hr)	2011-03-14	2019-12-13	Drug Delivery Solutions Ltd	Oftalmološki pripravak
US9233863B2 (en)	2011-04-13	2016-01-12	Molycorp Minerals, Llc	Rare earth removal of hydrated and hydroxyl species
CN103145167B (zh) *	2013-01-30	2015-09-23	内蒙古医科大学	氢氧化镧纳米颗粒的可控合成
US9975787B2 (en)	2014-03-07	2018-05-22	Secure Natural Resources Llc	Removal of arsenic from aqueous streams with cerium (IV) oxide compositions
EP3180103A1 (fr)	2014-08-15	2017-06-21	Halosource, Inc.	Mélange de milieux de filtration granulaires et utilisations dans la purification de l'eau
EP3542788A1 (fr)	2018-03-19	2019-09-25	MC2 Therapeutics Limited	Composition topique comprenant calcipotriol et dipropionate de bétaméthasone
CN115920828B (zh) *	2023-01-05	2024-07-26	中国科学院生态环境研究中心	磁性镧基吸附剂及其制备方法、富集水体磷的方法
CN119301077A (zh) *	2023-04-06	2025-01-10	埃科美泰尔斯公司	通过与铝凝胶共混沉淀砷酸铁以稳定砷的方法

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US3956118A (en)	1968-05-23	1976-05-11	Rockwell International Corporation	Removal of phosphate from waste water
US4609537A (en)	1984-08-13	1986-09-02	Standard Oil Company (Indiana)	Process for simultaneously removing nitrogen oxides, sulfur oxides, and particulates
US4902426A (en) *	1987-06-30	1990-02-20	Pedro B. Macedo	Ion exchange compositions
US5505857A (en)	1994-01-13	1996-04-09	Buckman Laboratories International, Inc.	Process for the treatment of metal-containing water and recovery of metals therefrom
US5603838A (en)	1995-05-26	1997-02-18	Board Of Regents Of The University And Community College Systems Of Nevada	Process for removal of selenium and arsenic from aqueous streams
US6200482B1 (en)	1997-08-12	2001-03-13	Adi International Inc.	Arsenic filtering media
US6197201B1 (en)	1998-07-29	2001-03-06	The Board Of Regents Of The University & Community College System Of Nevada	Process for removal and stabilization of arsenic and selenium from aqueous streams and slurries
WO2001030473A1 (fr)	1999-10-27	2001-05-03	Board Of Regents Of The University And Community College System Of Nevada	Procede de detoxication des cyanures
CA2481961C (fr)	2002-04-10	2012-07-10	Manoranjan Misra	Elimination de l'arsenic dans l'eau potable et de traitement
US7183235B2 (en) *	2002-06-21	2007-02-27	Ada Technologies, Inc.	High capacity regenerable sorbent for removing arsenic and other toxic ions from drinking water
US7930013B2 (en)	2005-06-29	2011-04-19	Compumedics Limited	Sensor assembly with conductive bridge
WO2007026370A1 (fr)	2005-08-29	2007-03-08	The Director General Defence Research & Development Organisation	Dispositif filtrant pour enlever l’arsenic de l’eau
CN101370737B (zh) *	2005-10-14	2012-04-25	英孚拉玛特公司	含纳米材料的水处理组合物
WO2007120910A1 (fr)	2006-04-14	2007-10-25	Board Of Regents Of The Nevada System Of Higher Education, On Behalf Of The Univ. Of Nevada, Reno	Composition absorbant l'arsenic et procédés d'utilisation

2007
- 2007-04-16 WO PCT/US2007/009390 patent/WO2007120910A1/fr not_active Ceased
- 2007-04-16 US US11/735,969 patent/US8110526B2/en not_active Expired - Fee Related
- 2007-04-16 CA CA2680402A patent/CA2680402C/fr not_active Expired - Fee Related
- 2007-04-16 EP EP07775606A patent/EP2079544A4/fr not_active Withdrawn
2011
- 2011-12-22 US US13/335,633 patent/US8648008B2/en not_active Expired - Fee Related
- 2011-12-22 US US13/335,636 patent/US8435922B2/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
US8110526B2 (en)	2012-02-07
US8435922B2 (en)	2013-05-07
US20080058206A1 (en)	2008-03-06
WO2007120910A1 (fr)	2007-10-25
EP2079544A4 (fr)	2012-09-05
CA2680402C (fr)	2015-10-27
US20120100984A1 (en)	2012-04-26
EP2079544A1 (fr)	2009-07-22
US8648008B2 (en)	2014-02-11
US20120165181A1 (en)	2012-06-28

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2012-02-16	EEER	Examination request
2023-11-30	MKLA	Lapsed	Effective date: 20220419

Publication	Publication Date	Title
CA2680402C (fr)	2015-10-27	Composition adsorbant l'arsenic et procedes d'utilisation
CN1729146B (zh)	2011-08-31	表面活性氧化钛产品的制备方法和该产品在水处理技术中的用途
US7473369B2 (en)	2009-01-06	Methods of preparing a surface-activated titanium oxide product and of using same in water treatment processes
Genç-Fuhrman et al.	2005	Arsenate removal from water using sand–red mud columns
Zhang et al.	2013	Nanostructured iron (III)-copper (II) binary oxide: a novel adsorbent for enhanced arsenic removal from aqueous solutions
Zeng	2003	A method for preparing silica-containing iron (III) oxide adsorbents for arsenic removal
US7947861B2 (en)	2011-05-24	Methods of removing a constituent from a feed stream using adsorption media
JP5482979B2 (ja)	2014-05-07	吸着剤
CA2481961C (fr)	2012-07-10	Elimination de l'arsenic dans l'eau potable et de traitement
Yigit et al.	2012	Removal of selenium species from waters using various surface‐modified natural particles and waste materials
WO2011016038A1 (fr)	2011-02-10	Procédé délimination de contaminants au sélénium de fluides aqueux
US7497952B2 (en)	2009-03-03	Methods of preparing a surface-activated titanium oxide product and of using same in water treatment processes
TWI672273B (zh)	2019-09-21	吸附方法
Marszałek	2022	Encapsulation of halloysite with sodium alginate and application in the adsorption of copper from rainwater
US20230415121A1 (en)	2023-12-28	Mixed metal oxide-hydroxide biopolymer composite beads and a process thereof
Jegadeesan et al.	2003	Comparative study of selenite adsorption on carbon based adsorbents and activated alumina
US20220387966A1 (en)	2022-12-08	Removing contaminants from water with adsorbents
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